package com.bd.scm.module.utils.wx;


import com.bd.scm.module.qywx.thread.WxTokenThread;
import com.bd.scm.module.utils.wx.message.resp.RespArticle;
import com.bd.scm.module.utils.wx.message.resp.RespNewsMessage;
import com.bd.scm.module.utils.wx.message.resp.RespTextMessage;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.core.util.QuickWriter;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
import com.thoughtworks.xstream.io.xml.PrettyPrintWriter;
import com.thoughtworks.xstream.io.xml.XppDriver;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Writer;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @ClassName MessageUtil
 * @Description TODO
 * @Author YH
 * @Date 2019/4/18 15:57
 * @Version 1.0
 **/

/**
 * 消息工具类
 *
 */
public class MessageUtil {

    /**
     * 返回消息类型：文本
     */
    public static final String RESP_MESSAGE_TYPE_TEXT = "text";

    /**
     * 返回消息类型：音乐
     */
    public static final String RESP_MESSAGE_TYPE_MUSIC = "music";

    /**
     * 返回消息类型：图文
     */
    public static final String RESP_MESSAGE_TYPE_NEWS = "news";

    /**
     * 请求消息类型：文本
     */
    public static final String REQ_MESSAGE_TYPE_TEXT = "text";

    /**
     * 请求消息类型：图片
     */
    public static final String REQ_MESSAGE_TYPE_IMAGE = "image";

    /**
     * 请求消息类型：链接
     */
    public static final String REQ_MESSAGE_TYPE_LINK = "link";

    /**
     * 请求消息类型：地理位置
     */
    public static final String REQ_MESSAGE_TYPE_LOCATION = "location";

    /**
     * 请求消息类型：音频
     */
    public static final String REQ_MESSAGE_TYPE_VOICE = "voice";

    /**
     * 请求消息类型：推送
     */
    public static final String REQ_MESSAGE_TYPE_EVENT = "event";

    /**
     * 事件类型：subscribe(订阅)and 未关注群体扫描二维码
     */
    public static final String EVENT_TYPE_SUBSCRIBE = "subscribe";

    /**
     * 事件类型：已关注群体扫描二维码
     */
    public static final String EVENT_TYPE_SCAN="SCAN";
    /**
     * 事件类型：unsubscribe(取消订阅)
     */
    public static final String EVENT_TYPE_UNSUBSCRIBE = "unsubscribe";

    /**
     * 事件类型：CLICK(自定义菜单点击事件)
     */
    public static final String EVENT_TYPE_CLICK = "CLICK";
    /**
     * 事件类型：VIEW(点击自定义菜单跳转链接时的事件)
     */
    public static final String EVENT_TYPE_VIEW = "VIEW";

    /**
     * 事件类型：transfer_customer_service(把消息推送给客服)
     */
    public static final String EVENT_TYPE_TRANSFER_CUSTOMER_SERVICE = "transfer_customer_service";

    // 上报地理位置
    public static final String EVENT_TYPE_LOCATION = "LOCATION";

    /**
     * 解析微信发来的请求（XML）
     *
     * @param request
     * @return
     * @throws Exception
     */
    @SuppressWarnings("unchecked")
    //屏蔽某些编译时的警告信息(在强制类型转换的时候编译器会给出警告)
    public static Map<String, String> parseXml(HttpServletRequest request) throws Exception {
        // 将解析结果存储在HashMap中
        Map<String, String> map = new HashMap<String, String>();

        // 从request中取得输入流
        InputStream inputStream = request.getInputStream();
        // 读取输入流
        SAXReader reader = new SAXReader();
        Document document = reader.read(inputStream);
        // 得到xml根元素
        Element root = document.getRootElement();
        // 得到根元素的所有子节点
        List<Element> elementList = root.elements();

        // 遍历所有子节点
        for (Element e : elementList) {
            map.put(e.getName(), e.getText());
        }
        // 释放资源
        inputStream.close();
        inputStream = null;

        return map;
    }

    /**
     * @desc ：2.解析微信发来的请求（xmlStr）,获取请求参数
     *
     * @param xmlStr
     * @return
     * @throws Exception Map<String,String>
     */
    public static Map<String, String> parseXml(String xmlStr) throws Exception {
        // 将解析结果存储在HashMap中
        Map<String, String> map = new HashMap<String, String>();


        //1.将字符串转为Document
        Document document = DocumentHelper.parseText(xmlStr);

        //2.获取根元素的所有子节点
        // 得到xml根元素
        Element root = document.getRootElement();
        // 得到根元素的所有子节点
        List<Element> elementList = root.elements();

        //3.遍历所有子节点
        for (Element e : elementList) {
            map.put(e.getName(), e.getText());
        }
        return map;
    }
    /**
     * 文本消息对象转换成xml
     *
     * @param textMessage 文本消息对象
     * @return xml
     */
    public static String textMessageToXml(RespTextMessage textMessage) {
        xstream.alias("xml", textMessage.getClass());
        return xstream.toXML(textMessage);
    }


    /**
     * 图文消息对象转换成xml
     *
     * @param newsMessage 图文消息对象
     * @return xml
     */
    public static String newsMessageToXml(RespNewsMessage newsMessage) {
        xstream.alias("xml", newsMessage.getClass());
        xstream.alias("item", new RespArticle().getClass());
        return xstream.toXML(newsMessage);
    }

    /**
     * 扩展xstream，使其支持CDATA块
     *
     * @date 2013-05-19
     */
    private static XStream xstream = new XStream(new XppDriver() {
        @Override
        public HierarchicalStreamWriter createWriter(Writer out) {
            return new PrettyPrintWriter(out) {
                // 对所有xml节点的转换都增加CDATA标记
                boolean cdata = true;

                @Override
                @SuppressWarnings("unchecked")
                public void startNode(String name, Class clazz) {
                    super.startNode(name, clazz);
                }

                @Override
                protected void writeText(QuickWriter writer, String text) {
                    if (cdata) {
                        writer.write("<![CDATA[");
                        writer.write(text);
                        writer.write("]]>");
                    } else {
                        writer.write(text);
                    }
                }
            };
        }
    });

    /**

     * 微信公共账号发送给账号

     * @param content 文本内容

     * @param toUser 微信用户

     * @return

     */

    public static void sendTextMessageToUser(String content, String toUser){

        String json = "{\"touser\": \""+toUser+"\",\"msgtype\": \"text\", \"text\": {\"content\": \""+content+"\"}}";

        //获取access_token
        String accessToken = WxTokenThread.jsonObject.getString("access_token");
        //获取请求路径

        String action = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token="+accessToken;

        System.out.println("json:"+json);

        try {

            connectWeiXinInterface(action,json);

        } catch (Exception e) {

            e.printStackTrace();

        }

    }
public static void main(String[] args) throws IOException {
  sendTextMessageToUser("你好，这里是崔用志个人账号！","omy0UwsJ4qm7DuaPUg3OwqOYpgD8");
}

    /**

     * 连接请求微信后台接口

     * @param action 接口url

     * @param json  请求接口传送的json字符串

     */

    public static void connectWeiXinInterface(String action, String json){

        URL url;

        try {

            url = new URL(action);

            HttpURLConnection http = (HttpURLConnection) url.openConnection();

            http.setRequestMethod("POST");

            http.setRequestProperty("Content-Type",

                "application/x-www-form-urlencoded");

            http.setDoOutput(true);

            http.setDoInput(true);

            System.setProperty("sun.net.client.defaultConnectTimeout", "30000");// 连接超时30秒

            System.setProperty("sun.net.client.defaultReadTimeout", "30000"); // 读取超时30秒

            http.connect();

            OutputStream os = http.getOutputStream();

            os.write(json.getBytes("UTF-8"));// 传入参数

            InputStream is = http.getInputStream();

            int size = is.available();

            byte[] jsonBytes = new byte[size];

            is.read(jsonBytes);

            String result = new String(jsonBytes, "UTF-8");

            System.out.println("请求返回结果:"+result);

            os.flush();

            os.close();

        } catch (Exception e) {

            e.printStackTrace();

        }

    }
}
